RT info:eu-repo/semantics/article
T1 Using a Planar Array of MEMS Microphones to Obtain Acoustic Images of a Fan Matrix
A1 Izquierdo Fuente, Alberto
A1 Villacorta Calvo, Juan José
A1 Val Puente, Lara del
A1 Suarez, Luis
AB This paper proposes the use of a signal acquisition and processing system based on an  8x8 planar array of MEMS (Microelectromechanical Systems) microphones to obtain acoustic images of a fan matrix. A  matrix of PC fans has been implemented to perform the study. Some tests to obtain the acoustic images of the individual fans and of the whole matrix have been defined and have been carried out inside an anechoic chamber. The nonstationary signals received by each MEMS microphone and their corresponding spectra have been analyzed, as well as the corresponding acoustic images. The analysis of the acoustic signals spectra reveals the resonance frequency of the individual fans. The obtained results reveal the feasibility of the proposed system to obtained acoustic images of a fan matrix and of its individual fans, in this last case, in order to estimate the real position of the fan inside the matrix.
PB Hindawi
SN 1687-725X
YR 2017
FD 2017
LK https://uvadoc.uva.es/handle/10324/67209
UL https://uvadoc.uva.es/handle/10324/67209
LA eng
NO Lara del Val, Alberto Izquierdo, Juan José Villacorta, Luis Suárez, "Using a Planar Array of MEMS Microphones to Obtain Acoustic Images of a Fan Matrix", Journal of Sensors, vol. 2017, Article ID 3209142, 10 pages, 2017. https://doi.org/10.1155/2017/3209142
DS UVaDOC
RD 25-nov-2024